CA2056294A1 - High speed recognition of a string of words connected according to a regular grammar by dp matching - Google Patents
High speed recognition of a string of words connected according to a regular grammar by dp matchingInfo
- Publication number
- CA2056294A1 CA2056294A1 CA2056294A CA2056294A CA2056294A1 CA 2056294 A1 CA2056294 A1 CA 2056294A1 CA 2056294 A CA2056294 A CA 2056294A CA 2056294 A CA2056294 A CA 2056294A CA 2056294 A1 CA2056294 A1 CA 2056294A1
- Authority
- CA
- Canada
- Prior art keywords
- word
- occurrence
- period
- calculated
- string
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000013598 vector Substances 0.000 abstract 6
- 230000007704 transition Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/903—Querying
- G06F16/90335—Query processing
- G06F16/90344—Query processing by using string matching techniques
Landscapes
- Engineering & Computer Science (AREA)
- Databases & Information Systems (AREA)
- Theoretical Computer Science (AREA)
- Computational Linguistics (AREA)
- Data Mining & Analysis (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Character Discrimination (AREA)
- Machine Translation (AREA)
- Image Analysis (AREA)
Abstract
On carrying out connected word recognition in compliance with a regular grammar and in synchronism with successive specification of input feature vectors of the input pattern, one of an n-th word (n) of first through third occurrence (n(1) to n(3)) is selected as the n-th word of selected occurrence in an i-th period in which an n-th input feature vector is specified. The n-th word appears as the first through the third occurrence in transition rules specified by the grammar. In the n-th period, distances are calculated, only for the n-th word of the selected occurrence, between the input feature vector assigned to the i-th period and reference feature vectors for the n-th word. In the i-th period, a recurrence value g(n, i, j) is calculated only for the n-th word of the selected occurrence under a boundary condition T(p, i-l) iteratively in correspondence to the reference feature vectors by using the distances calculated for the n-th word of the selected occurrence before the i-th period, where j represents each feature vector. The recurrence value for the n-th word of nonselected occurrence is estimated by using the recurrence value for the n-th word of the selected occurrence and the boundary conditions T(p, i-l)'s for the n-th word of the selected and the nonselected occurrence. The above-mentioned one of the n-th word of the first through the third occurrence is selected so as to have a minimum value of the T(p, i-l)'s.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2327061A JP2697302B2 (en) | 1990-11-28 | 1990-11-28 | Continuous word recognition method |
JP327061/1990 | 1990-11-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2056294A1 true CA2056294A1 (en) | 1992-05-29 |
CA2056294C CA2056294C (en) | 1996-03-12 |
Family
ID=18194865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002056294A Expired - Fee Related CA2056294C (en) | 1990-11-28 | 1991-11-27 | High speed recognition of a string of words connected according to a regular grammar by dp matching |
Country Status (5)
Country | Link |
---|---|
US (1) | US5287429A (en) |
EP (1) | EP0488208B1 (en) |
JP (1) | JP2697302B2 (en) |
CA (1) | CA2056294C (en) |
DE (1) | DE69132761T2 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3554571B2 (en) * | 1993-05-31 | 2004-08-18 | 株式会社日立製作所 | Sign language recognition device |
US5699456A (en) * | 1994-01-21 | 1997-12-16 | Lucent Technologies Inc. | Large vocabulary connected speech recognition system and method of language representation using evolutional grammar to represent context free grammars |
US5878385A (en) * | 1996-09-16 | 1999-03-02 | Ergo Linguistic Technologies | Method and apparatus for universal parsing of language |
US8180643B1 (en) | 2001-02-15 | 2012-05-15 | West Corporation | Script compliance using speech recognition and compilation and transmission of voice and text records to clients |
US7191133B1 (en) | 2001-02-15 | 2007-03-13 | West Corporation | Script compliance using speech recognition |
US7739115B1 (en) | 2001-02-15 | 2010-06-15 | West Corporation | Script compliance and agent feedback |
US7664641B1 (en) | 2001-02-15 | 2010-02-16 | West Corporation | Script compliance and quality assurance based on speech recognition and duration of interaction |
US7966187B1 (en) * | 2001-02-15 | 2011-06-21 | West Corporation | Script compliance and quality assurance using speech recognition |
US6930759B2 (en) * | 2003-09-23 | 2005-08-16 | Eastman Kodak Company | Method and apparatus for exposing a latent watermark on film |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58100195A (en) * | 1981-12-10 | 1983-06-14 | 日本電気株式会社 | Continuous voice recognition equipment |
US4624008A (en) * | 1983-03-09 | 1986-11-18 | International Telephone And Telegraph Corporation | Apparatus for automatic speech recognition |
US4882757A (en) * | 1986-04-25 | 1989-11-21 | Texas Instruments Incorporated | Speech recognition system |
US5073939A (en) * | 1989-06-08 | 1991-12-17 | Itt Corporation | Dynamic time warping (DTW) apparatus for use in speech recognition systems |
-
1990
- 1990-11-28 JP JP2327061A patent/JP2697302B2/en not_active Expired - Fee Related
-
1991
- 1991-11-27 EP EP91120267A patent/EP0488208B1/en not_active Expired - Lifetime
- 1991-11-27 CA CA002056294A patent/CA2056294C/en not_active Expired - Fee Related
- 1991-11-27 DE DE69132761T patent/DE69132761T2/en not_active Expired - Fee Related
- 1991-11-29 US US07/800,080 patent/US5287429A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH04195099A (en) | 1992-07-15 |
EP0488208B1 (en) | 2001-10-10 |
DE69132761T2 (en) | 2002-07-11 |
DE69132761D1 (en) | 2001-11-15 |
EP0488208A2 (en) | 1992-06-03 |
CA2056294C (en) | 1996-03-12 |
JP2697302B2 (en) | 1998-01-14 |
US5287429A (en) | 1994-02-15 |
EP0488208A3 (en) | 1993-09-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |